Omega, a gentleman's stainless steel Speedmaster chronograph wristwatch, 1960's,

细节
Omega, a gentleman's stainless steel Speedmaster chronograph wristwatch, 1960's,
black dial signed Omega Speedmaster, luminous baton markers, subsidiary constant seconds, minute and hour recording dials, case with black tachymetre bezel, screw back, associated stainless steel bracelet, diameter 40mm.